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"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = formatISO;

var _index = _interopRequireDefault(require("../toDate/index.js"));

var _index2 = _interopRequireDefault(require("../_lib/addLeadingZeros/index.js"));

var _index3 = _interopRequireDefault(require("../_lib/requiredArgs/index.js"));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

/**
 * @name formatISO
 * @category Common Helpers
 * @summary Format the date according to the ISO 8601 standard (https://support.sas.com/documentation/cdl/en/lrdict/64316/HTML/default/viewer.htm#a003169814.htm).
 *
 * @description
 * Return the formatted date string in ISO 8601 format. Options may be passed to control the parts and notations of the date.
 *
 * @param {Date|Number} date - the original date
 * @param {Object} [options] - an object with options.
 * @param {'extended'|'basic'} [options.format='extended'] - if 'basic', hide delimiters between date and time values.
 * @param {'complete'|'date'|'time'} [options.representation='complete'] - format date, time with local time zone, or both.
 * @returns {String} the formatted date string (in local time zone)
 * @throws {TypeError} 1 argument required
 * @throws {RangeError} `date` must not be Invalid Date
 * @throws {RangeError} `options.format` must be 'extended' or 'basic'
 * @throws {RangeError} `options.represenation` must be 'date', 'time' or 'complete'
 *
 * @example
 * // Represent 18 September 2019 in ISO 8601 format (local time zone is UTC):
 * const result = formatISO(new Date(2019, 8, 18, 19, 0, 52))
 * //=> '2019-09-18T19:00:52Z'
 *
 * @example
 * // Represent 18 September 2019 in ISO 8601, short format (local time zone is UTC):
 * const result = formatISO(new Date(2019, 8, 18, 19, 0, 52), { format: 'basic' })
 * //=> '20190918T190052'
 *
 * @example
 * // Represent 18 September 2019 in ISO 8601 format, date only:
 * const result = formatISO(new Date(2019, 8, 18, 19, 0, 52), { representation: 'date' })
 * //=> '2019-09-18'
 *
 * @example
 * // Represent 18 September 2019 in ISO 8601 format, time only (local time zone is UTC):
 * const result = formatISO(new Date(2019, 8, 18, 19, 0, 52), { representation: 'time' })
 * //=> '19:00:52Z'
 */
function formatISO(date, options) {
  (0, _index3.default)(1, arguments);
  var originalDate = (0, _index.default)(date);

  if (isNaN(originalDate.getTime())) {
    throw new RangeError('Invalid time value');
  }

  var format = !(options !== null && options !== void 0 && options.format) ? 'extended' : String(options.format);
  var representation = !(options !== null && options !== void 0 && options.representation) ? 'complete' : String(options.representation);

  if (format !== 'extended' && format !== 'basic') {
    throw new RangeError("format must be 'extended' or 'basic'");
  }

  if (representation !== 'date' && representation !== 'time' && representation !== 'complete') {
    throw new RangeError("representation must be 'date', 'time', or 'complete'");
  }

  var result = '';
  var tzOffset = '';
  var dateDelimiter = format === 'extended' ? '-' : '';
  var timeDelimiter = format === 'extended' ? ':' : ''; // Representation is either 'date' or 'complete'

  if (representation !== 'time') {
    var day = (0, _index2.default)(originalDate.getDate(), 2);
    var month = (0, _index2.default)(originalDate.getMonth() + 1, 2);
    var year = (0, _index2.default)(originalDate.getFullYear(), 4); // yyyyMMdd or yyyy-MM-dd.

    result = "".concat(year).concat(dateDelimiter).concat(month).concat(dateDelimiter).concat(day);
  } // Representation is either 'time' or 'complete'


  if (representation !== 'date') {
    // Add the timezone.
    var offset = originalDate.getTimezoneOffset();

    if (offset !== 0) {
      var absoluteOffset = Math.abs(offset);
      var hourOffset = (0, _index2.default)(Math.floor(absoluteOffset / 60), 2);
      var minuteOffset = (0, _index2.default)(absoluteOffset % 60, 2); // If less than 0, the sign is +, because it is ahead of time.

      var sign = offset < 0 ? '+' : '-';
      tzOffset = "".concat(sign).concat(hourOffset, ":").concat(minuteOffset);
    } else {
      tzOffset = 'Z';
    }

    var hour = (0, _index2.default)(originalDate.getHours(), 2);
    var minute = (0, _index2.default)(originalDate.getMinutes(), 2);
    var second = (0, _index2.default)(originalDate.getSeconds(), 2); // If there's also date, separate it with time with 'T'

    var separator = result === '' ? '' : 'T'; // Creates a time string consisting of hour, minute, and second, separated by delimiters, if defined.

    var time = [hour, minute, second].join(timeDelimiter); // HHmmss or HH:mm:ss.

    result = "".concat(result).concat(separator).concat(time).concat(tzOffset);
  }

  return result;
}

module.exports = exports.default;

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